The post crash fire in the trials was due to a failure of the remote control. The intention was to basically belly land the test aircraft into a bed of knives and apply a spark. However it went out of control on final and cartwheeled. This was outside the design parameters of the fuel retardent and up in flames it went.
The anti misting fuel works very well in the right circumstances and the main reason we are not filling up with it is as usual cost.
